What should be included when using the @HttpPatch method for updates?

When using the @HttpPatch method for updates in Salesforce, it is important to include specific fields as parameters or JSON pairs. This approach aligns with the RESTful principles of the PATCH method, which is designed for making partial updates to a resource instead of replacing the entire resource.

By including only the specific fields that need to be updated, you minimize data transfer and reduce the likelihood of unintentionally overwriting data that should remain unchanged. This makes the update process more efficient and follows best practices for API development.

In contrast, providing only the name of the fields would not convey the necessary values for the update operation. Sending the entire record would imply a full replacement, which contradicts the intention of using PATCH. Mentioning only nullable fields is also inadequate, as it would not encompass all relevant updates if there are additional fields that need modification. Thus, specifying specific fields as parameters or JSON pairs is the most appropriate and effective way to utilize the @HttpPatch method.